I would definitely recommend this video to watch. I found it very interesting to watch, and the information I learnt truly amazed me. So please watch this video if you have time!

Blue: Facts

Red: Understandings

Green: Questions

This video was about solar system and the size/scale of it. Here’s a quote explaining what it’s like to see Earth in space.

“As we got farther and farther away, the Earth diminished in size. Finally it shrank to the size of a marble, the most beautiful marble you can imagine… seeing this can change a man.” James Irwin Apollo 15. Who did it changed? Did they do anything about it?

See, the actual size of planets are microscopic, on a piece of paper you can’t see them. But it’s the opposite with the distance from the sun to the moon, it’s actually way bigger than what we think it is.

So if we can’t see how big the solar system is, how can we know? Well, the only way to see the actual size of the solar system is to build it.

In the black rye desert, Alex Gorosh and Wylie Overstreet set up camp and in 36 hours they measure distances, trace out orbits and set up a time lap video (which had to be shot from up on top of a nearby mountain). When the time lap had finished, they would light up a marble on a stand where a planet is support to be. When it was lighten, you could see how big the solar system actually is (from the lines/orbit). Here is what the planets ended up being on the scale:

(Smallest to biggest)

Mercury was 68 m/224 feet.

Venus 120 m/447 feet

Earth 176 m/579 feet

Mars (actually has robots on this planet) 269 m/881 feet

Jupiter 0.92 km/0.51 mi

Saturn 1.7 km/1.1 mi

Uranus- 3.4 km/2.1 mi

Neptune (the edge of the solar system)- 5.6 km /3.5 mi

By the planet Jupiter, the orbits were becoming giant! Neptune’s was the biggest out of all of the planets, and it was ginormous. You can see how big all of the orbits were (they were HUGE) in the video (at the top of the page-link, from 2.20 min to 4.33 min).

To prove that they had done this correctly, they decided to test this scale with the sun. They tested by seeing whether the sun they created (the size at sunrise) is the same size as the actual one at sunrise. It was, so they were correct. The sun was a meter and a half on the scale

There are 24 people out of billions who have seen the full circle of earth. Why only 24?

Earth’s orbit doesn’t rise, it curves. When you head on out to the moon, the horizon slowly curves around and then you’re looking at something that’s very strange yet very familiar. Earth. If you’re in space and you’re looking out at Earth, you can put your thumb up and can hide Earth.

I now understand actually how huge solar system is, and how big the planets actually are.

This video was about how ancient Greeks thought about our solar system, galaxy and the cosmos, and how their ideas grew.

The ancient Greeks used to believe that the sun and the stars moved around earth for this reason, because earth was in the centre of the solar system. Also, they believed that it had to be the stars and the sun moving (not earth), for if earth was moving we would feel it.How did the ancient Greeks even know about space? At the time, these assumptions was actually a simple mistake to be made. So since they thought this, they drew the solar system with earth in the centre, the moon opposite it and then the sun opposite the moon. Which leaves the stars, which would be rotating around earth in a circle. I understand how beliefs passed down for centuries can really affect what you believe, and how it’s not always the correct assumption.

But one day they found that something didn’t move in a circle but back and forth, so the Greeks had to change the model. Or course they hadn’t worked out what that thing was, but they decided to give it a shot. Astronomers developed more complex models, with happened to have more circles in them. Finally, one day a better model than any was created. This model the astronomers put the sun in the middle of our solar system (which is where it actually belongs).

This model led them to finding out what was the thing that went back and forth across the night sky. This thing was a planet, and it was called Mars.

So after all of this discovery and new information, they should have a pretty good representation… Actually no. At this point in time, they went even close. It wasn’t until Galileo Galilei built the first telescope that they actually got somewhere.When was the first telescope built? It showed things like how Jupiter has four moons.

But this telescope also showed everyone what the real representation of our solar system is.

So now, the current model shows all the planets orbiting around the sun. It also shows that if the sun and stars move across the sky, then the earth must be rotating to make them move.

Questions Answers:

The first telescope made was built in 1608 by a German-Dutch lens maker, who went by the name Hans Lippershey.

The knowledge of space was given to them by other cultures. Chinese Astronomers, Mesopotamian and Zoroastrian astronomers/astrologers and even Indian Vedas mainly helped out the Greeks with their knowledge. Most of the knowledge though was given when Alexander the Great conquered the region, in 331 BCE.

Good evening and welcome to all families, teachers and year 6 graduates.

I’m just going to point out how amazing it has been for the last 7 years! There have a lot of laughs, and a lot of events, as well as sad farewells and happy arrivals. But to sum up the 7 years that this graduating class has had, all we can say is wow. From the nerve-racking first day to become leaders of our school, well let’s say we all had our moments.

Which is why we need to thank all the teachers we ever had, from the prep teachers Nicole and Leigh, the 1/2, 3/4, and last but not least 5/6’s. Also anyone that has helped us along the way, from other teachers, principals, the fabulous ladies in the office and even when the parents came in to help us. Thank you.

No matter what, the class of 2016 are unstoppable, and will be for the next 6 years of their high school careers.

Tonight, every student here is celebrating their time at Moonee Ponds Primary School. I know, with many of my fellow graduates, that I will always look back on this school and smile. There have been many laughs and grins, and many memories we will never forget. The things we were taught might not seemed that big of a deal now, but has given us a big step forward. We will learn new things and make new friends, with experiences in the future we can’t even imagine. But Moonee Ponds Primary has prepared us for these moments, and we thank you. I, and all my fellow graduates, will cherish the moments we had at this school, and acknowledge how great our time here has been.

Let’s just start off with all of the memories this grade has had, from the exciting experiences, to the hilarious memories that we will never forget. There were the major memories like times at camp, from the dinosaur song sung by the angelic voices of Lucca and Thomas, to the Donald Trump song this year at MPPS has talent. There was the year 2 sleepover, which was just a laugh in itself. And finally, our biannual concerts, which never fails to put a smile on our parents’ faces.

But there were times where these moments weren’t expected, like the massive storm at Camp Curumbene where almost everyone got soaked! As well as the times were little things happened on a normal school day, but they were still as funny and as important as the big memories. Like how everyday at least once Sammy will enlighten everyone with one of his jokes or impressions. Some memories are even from the past, like the joyful and frightening rat song. These memories, past present, original and creative, planned out or surprising, will be with us all throughout our lives. And these moments make up our experience at Moonee Ponds Primary School. Everyone has a memory of this school they can take with them, from big events to just hanging out with friends, we all have something to remember this school by.

Now on to the students, well just look at them right now. All of them have they own talent, and we all got to see them shine at our time here. Everyone got there moments, from Anatolia and Meliss beautiful singing at camp, which connects to Lara killing it when she sung “Don’t let me Down” this year. Every time chess awards are presented at assembly …. You will always see Alicia, Flynn, Anton and Griffin going up to collect their prize, as well as many other kids. You have the classics, like Sasha’s contagious laugh which makes you automatically smile, to Ben and his unique puns. Zoe and how her amazing writing skill got her work published in a book! Everyone here is so smart and talented, and the list just keeps going on and on.

Tonight we have discussed how amazing our time here has been, but we haven’t discussed the next 6 years of our lives. I admit, it will be very hard to leave such a journey and rewarding adventure, but we must move on. First day of high school will be scary, and for some a bit of a struggle. But as Mandy Hale said “Change can be scary, but you know what’s scarier? Allowing fear to stop you from growing, evolving and progressing. Progress is impossible without change, and we can’t always live in the past.” So tonight, we say goodbye to Moonee ponds with tears, laughs and smiles as we prepare ourselves for a hectic next 6 years. So tonight, let’s not think of this event closing an end of a road. Think of it just beginning, with new friends and a fresh start right around the corner. So the road hasn’t been closed yet, it will still be there for the next 6 years until we graduate. Let the fun times begin!

So tonight, we say goodbye to the school we have been at for 7 whole years. We will leave behind all we have experienced of primary school, and will step into a whole new world of high school. But we are not just leaving Moonee Ponds Primary School, we are leaving with memories we will never forget, friends we will be with for life and knowledge and preparation for the years to come. We are leaving with joy, laughter, pride and honour, and will be continuing the years of our lives with these values as Moonee Ponds has taught us. This class of 2016 are a very special class, and all we will remember when we look back on this, is think what an amazing grade we were.

So thank you to all families sitting here tonight, for letting all of us grow to become the people we have become. Thank you for being proud of us, and helping us every step of the way. Thank you to Moonee Ponds Primary School for being the best school anybody has come across. And thank you to all yr 6’s tonight, for making this 7 long years a bit more enjoyable.

Before I go, I’ll leave you with a quote from the one of a kind, Dr Seuss.

“You’re off to great places! Today is your day! Your mountain is waiting. So… get on your way!”

School holidays are coming up, and thank god it’s going to be hot. Swimming pools, hanging out with friends, water fights. How much better can school holidays get? But many years ago, something really important happened in the school holidays. The first person was sent into space! So go celebrate this, this article will be about the biggest events in our history about space.

When we look up at the sky with millions of stars, what we are really seeing is a whole universe of planets, asteroids, moons and suns. But these things were so far away from mankind, that we couldn’t really explore them. But on April 12, 1961 we started. Yuri Gagarin was a Russian cosmonaut flying in the Vostok 1, and he became the first person to make it into space. And this remarkable trip, helped change everything.

Space is a very hostile place. No air too breathe, the temperature is freezing cold, and doesn’t sound like the most enjoyable place. But for countries like the U.S and Russia, well they wanted to know everything about space. An insight I have is I understand how they want to find out more. They get introduced to something no one knows that much about, you would want to learn more about it.

In fact, the president of the United States stated:

“We choose to go to the moon in this decade and do the other things not because they are easy but because they are hard.”

So saying this, massive amounts of research and money went into creating a rocket called Apollo 11. And when it landed on the moon on 20th July 1969, it became the first rocket to be on the moon. Therefore, the two astronomers on this rocket ship became the first men to land/walk/float on the moon. These 2 astronomers were Neil Armstrong and Buzz Aldrin, who happened to be from America. Neil Armstrong stated:

‘One small step for man, one giant leap for mankind’.

And he was completely true.

But then even bigger things happened.

In the 1970’s, the U.S.A set up Skylab, the first space station that let people live in space! In 1981, the launch of the space rocket Columbia started the beginning of reusable space craft. And they built the giant structure so big, that is was seen from Earth!

And guess what, there’s an international space station that people have been living there from the year 2000. The people there can answer questions you might have about space.A question I have is how did they collect all of this information? The knowledge gained from space missions and space stations can help other missions, like how satellites are orbiting the earth in their hundreds. And these satellites are still giving TV signals, phones and the internet all around the world.

But there are also downfalls to these incredible events, like how much it costs for human spaceflight, and to build and launch spaceships. It can cost billions, so most big projects now use unmanned satellites and advanced robots.

Now you might think that we know EVERYTHING about space, but the truth is we have a lot to learn about our universe. Recently sending people has been helping us find out more about space, and its gone to the point where some companies have set up space tourism programs to take people beyond Earth’s atmosphere, just for the experience! Here’s an example of this, and it’s a true add:

“Virgin Galactic is on track to become the world’s first commercial space line and if you’ve ever dreamt of joining the incredible group of pioneering astronauts your opportunity has arrived.”

But this isn’t the only add out there who wants people to join them to go to space, there’s way more. In fact, there’s a project right now that wants to send people to mars to create a reality tv show. This cast will be going to stay and live on mars, and it’s a one way ticket only.A question I have is what type of people are they looking for to be in this project?

So if all of this happens, we would have proven that we have the technology to send people to our space. But we could also prove we have the technology to travel further. So, while were getting ready to celebrate sending huge amounts of people into space, the future of exploring space is still very interesting and exciting.

This article is about the SpaceX project and how they want to send humans to mars. The first thing you need to know is, well you might be living on mars in the next 40- 100 years. In fact, Elon Musk (the owner of SpaceX) wants to have the first rocket to mars by 2024! That means that they want the first rocket to go in 8 years! As amazing/terrifying as it sounds, Elon has stated that the crew on this rocket will have to expect a high chance of dying. Though this may not affect as many people as you think, since a lot of people have come and listen to his speech on colonizing mars.

He has explained about the ships he’s planning to use, and he’ll need to build them as well. First step, a spaceship with 450 tons of cargo. It needs to carry up to more than 100 people at once. Next step, launch it into earth’s orbit. For this to happen, he plans on having a massive booster that will be powering the ship on its journey. But it sure will need to be powerful, for the spaceship (by the sound of it) is going to be massive! It is so big that it’s larger than NASA’s Saturn V rocket! To power something this huge, you need 42 raptors. And how to power these raptors, well how about some methane? I think this is an amazing idea because methane is really bad for the environment and isn’t really helping us. And if we can use it to help us get somewhere important and not destroy our oxygen, that would be terrific! So these boosters will then shoot this spacecraft out into Earth’s orbit, but the next step might confuse you. They want the spaceship come back down and land on the launch pad. This is because of the crucial next step, they refill the petrol (with the second fuel capsule they have) and send it back up again! The last step is very simple, with the leftover petrol they had (the first time around) and the new petrol, they will fly to mars.

The rocket would be powered by 42 raptor engines, space X did their first test of the engine and this engine actually runs on methane. When the rocket goes into space the 2nd part of it will detach and float down to earth in the original position then when it’s in the position another top part of the space ship is connected to the bottom and then sent into space again and so on. I now understand that astronomers are working really hard to try and get our future of space exploration to be understandable and to one day send astronauts and other people into space and to mars.

Elon Musk is in charge of this project, he’s the CEO of this company. And as he has stated, his main goal (all he really wants in this) is to colonize Mars. Of course they will be some minor problems, like how all the resources we need (which Mars has them) are deep underground and might need some mining to get them. A question I have is how they are going to get these materials they need in time? And will the food, water, everything/anything be difference? What will be and how? Also, SpaceX wants to transform Mars to look like Earth, exactly. So they are planning to give this planet a makeover by launching thermos nuclear weapons at it.

A few extra questions I had were:

What type of laws will be made on mars and what will they be based on?

What kind of government will be formed on mars? Will it be the same as now, the same/different people, or a completely different system? What system, why and how?

What will kids or even adults do in their free time to keep them busy (more based at kids)?

This video was about how astronomers eat food in space. Surprisingly enough, there is a lot of different options that you can eat in space, though the meals are a bit different to what we have on Earth.

First of all, they try to make the food very small so it’s less expensive (since space food is very expensive). Secondly, there is a lot of canned/packaged food, and they’re very simple to make (they come in canned/packaged/boxes so its stops them from floating around). They get boxes full of food, labelled which foods are which. The food is shared with everyone (of course) and any of the bonus food they get have to be approved (so there isn’t any microbial contamination that might cause health problems). Thirdly sometimes they have to eat their food with a straw, as well as they have to drink with a straw. Lastly, they even get some food already prepared for them, but the water they drink is just like ours on Earth (except they drink it out of a slip rather than a drink bottle and there’s flavours). But something very important about these meals are they have to be/are high in protein.

This is because when an astronomer is in space, they can be affected (since they’re in a weightless environment) in their bones and organs. But the most important part of your body (that they think) that can be affected is the muscles in your bones. That’s why astronomers’ food is filled with protein, so their body doesn’t get too affected.

Another priority about space food that you need to have is rations. As you already know, the food comes in packages/boxes and there labelled which one is which .But the labels also show what is rational and what can be consumed at how much. The red sticker stands for rational and the blue sticker shows that it can consumed however you like.

The last thing about space food is that astronomers do not waste any food in space (since it’s so expensive). But when the astronomers are finished with the food, they put the wrapper into a bag and repeat with other finished food until it’s full. Then they throw it out into space so it burns into the earth’s atmosphere.

An understanding I know have is how important and specific the food in space is, and how everything has to be approved.

2 questions I have are:

Did astronomers have a say/thought of the type of food they have in space?

How much food is sent up to space (and is it all used) as well as how much nutrition is in it?

On the 26/2/2013, a massive meteor explosion took place right over Russia. The same day an asteroid passed really close to earth, though these 2 events weren’t linked. This article is about the difference between asteroids, meteors and comet.

We live on the planet earth, and the way we live is pretty decent. There’s water, oxygen, the weather isn’t too cold or too hot, we can breathe fresh air and create buildings, and we can even have picnics! But were not the only planet or rock out there in our solar system, and that’s where asteroids, comets and meteors come in.

This meteor that hit Russia was in the Ural Mountains and it no one expected it. It strike through the atmosphere and exploded above a city called Chelyabinsk. The force it made was 20 times bigger than an atomic bomb, but since it was so high in the sky the effects on ground weren’t devastating. But the shockwave blew out the windows, damaged buildings and injured more than a thousand people. As this event occurred, astronomers watched an asteroid half the size of a football field passed closely by earth.

These 2 events weren’t connected at all, but they did get people talking about what’s really going on in space. See, there are more things in our solar system than the planets that orbit the sun. There are chunks of dust, rock and ice in our solar system (which are the leftovers from the process that formed the planets billions of years ago). These are called asteroids, meteoroids and comets.

Comets are chunks of ice and dust which are from the cold outer parts of the solar system. When they get close to the sun they start to melt, therefore giving off a gas that looks like a beautiful glowing trail.

Asteroids are normally made of rock or metal. Tens of thousands of them are located in an area in the solar system called the asteroid belt (which is between Mars and Jupiter) but some travel closer to Earth.

Meteoroids are a smaller version of asteroids, and millions of them hit the Earth’s atmosphere every day. When they enter the atmosphere, we change the name to meteors. Most meteors burn up really quickly when they hit the atmosphere, and if you’ve ever seen a shooting star, that’s a meteor.

This meteor that flew over Paris was bigger than most meteors, and because it was made of the things it was made of, it didn’t explode straight away. It exploded when it hit thicker air, and this has happened in Russia before. In 1908, scientists believe that a massive meteor exploded above a place called Tunguska. Nothing from the meteor reached the ground, but the force of it knocked down kilometers of trees. But when a meteor does hit the round, we call it a meteorite.

When we do get meteorites, they can be very valuable. This is because they give more knowledge to scientist to find out what’s going on in space, and to be able to touch a rock from space that is billions of years old, it would be amazing!

Damaging meteor/meteorites events on earth are rare, but they can happen. A lot of scientist believe that one reason why the dinosaurs became extinct (over 66 million years ago) was because of a meteorite. But scientist also believe that this type of event will probably not happen in our lifetime again, so humans are in no danger of meteors/meteorites. This is for astronomers spend a lot of time studying comets and asteroids, and finding things out like where they’re heading. Some can even send robotic spacecraft to study them up close, and they have different ways to protect the planet if one got to close. But these amazing comets, meteors and asteroids have a lot to teach us, and will teach us more about the ancient history of our solar system than ever in history.

An understanding I now have is:

Meteors, asteroids and comets are clearly linked but are they own different things, though we also could expand our knowledge on them (especially comets and asteroids).

2 questions I have are:

What different ways can the robotic spacecraft (sent by astronomers) protect our planet?

What equipment do astronomers, or even scientists, have to find out this information (besides the spacecraft)?

This article is about our solar system and what we know about it (generally). The solar system is a series of objects that orbit the sun because of gravity. It consists of In consists of galaxies, planets, asteroids and many more. Our solar system is a tiny percent of what we call Space, which is enormous! Our solar system is located in a calmer part of the Milky Way, which all humans in our solar system live.

There are 8 planets in our solar system, which are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Each planet is either a gas planet or a terrestrial planet, but this doesn’t include the bunch of dwarf planets (I will expand on dwarf planets a bit later). Mercury, Venus, Earth and mars are terrestrial planets, but they are tiny compared to the gas planets Jupiter, Saturn, Uranus and Neptune (in fact these gas planets contain 99% of the mass of all the other planets combined!). Although these planets can be named into groups, they are very different. They can have different temperatures, weights, moons, weather, sizes, distance from the sun, and even simple things like the colour of the planet. But there are still similarity’s about the planets like:

Every planets has to be a sphere

Every planet has cleared orbit

All of the planets orbit the sun (Star Sol).

And all together, the planets make up 0.14% of our solar system.

Dwarf planets are also very different to each other and have categories, except theirs are based on where they are in the solar system. The two categories are the Asteroid Belt (the dwarf planets are between Mars and Jupiter), and the Kuiper Belt (the boundary of the solar system). In these belts are also the trillions of asteroids and comets in our solar system. The all circle the sun, and some examples of dwarf planets are Pluto, Ceres, Makemake and Haumea. Ceres is the most known object in the Asteroid Belt, while Pluto, Makemake and Haumea are the best known objects in the Kuiper Belt. Although there are millions of objects in these belts, both are pretty empty. But the mass of these belts make up for it, the asteroid belt being 4% of the moons mass while the Kuiper belt is between 1/25 and 1/10 of Earth!

Another object in our solar system that is very important is our sun! It takes up 99.86% of our solar system mass, and it is made from mainly hydrogen, helium and less than 2% of oxygen and iron. The core of the sun consumes 620 million tons of hydrogen every second. Over the years the sun will get hotter and hotter, until when it get to the 500 million year make, the only thing that will remain in our solar system will be the 4 closest planets. Then the sun will melt each of the planets crusts, and the sun will get hotter. Then it will get so hot that it expands and swallows up these planets, or will turn them into a sea of lava. After the sun has done this, it will shrink into a white dwarf star and burn for a few billion years. Then the sun will die, and there will be no life in our solar system. The mankind in our solar system will be extinct, unless we leave and find somewhere else.

The solar system is so big that we haven’t even explored all of it yet. It has been around for 4 ½ billion years, and every year we learn something new about it. But we still haven’t developed the technology to find out everything about the solar system though we have found out a lot over the years.

I understand that we have found out so much about the solar system, yet we only have found out a tiny bit.

My Question is:

When/will there be a time where we find out everything (or most things) about the solar system and will humankind still be there for it (the sun wouldn’t have swallowed us up)?

My 2 Question is:

When will we have the technology to discover everything (most things) about the solar system, and what will this technology do?

This week, instead of a BTN video we could write a 321 reflection on a video about space (since space is our topic for this term). Hope you enjoy!

If you want to see the video, its on a blog called antsclass. Go check it out!

Blue = Facts

Red = Understandings

Green = Questions

This science video is about how ancient humans were fascinated by astronomy and how they talked about it then and now. The three main races that looked into astronomy the most were Mayans, Babylonians and Ancient Greeks. These 3 races discovered so much about astronomy and made us understand space a whole lot better. Especially Babylonians, they very advanced astronomers (and very interested in space) since they had created a writing system that allowed them to record a lot of information about space. This system helped Babylonia create mathematical models like calendars and these type of things were very helpful to them back then. Especially in the city-state of Ancient Babylon, which is located near modern Baghdad. These smart Babylonians were also able to predict astronomical phenomena, although they didn’t see things in a scientific standpoint. But their work has influenced astronomy and has created the birth of early forms of modern horoscopic astrology.

The race of Mayans is a group of Mesoamerican Indians. Even present day, we still don’t know a lot about this race and their knowledge about astrology (since the Spanish Conquistadors burned all of their records). But a very famous creation was from the Mayans, and that was the Mayan Long Count Calendar. This calendar was a very sophisticated system that uses base 20 numbers. This calendar is very famous because the Mayans believed that the world was going to end on the 21st of December 2012 (since that was when the calendar ended). This prediction was incorrect, so that means that Christmas and New Year’s Eve could be celebrated! Although the prediction was incorrect, it helped the Mayans discover the eclipse which was used to prognosticate important events, as well as predicting things like the motion of the planets.

The last race that was very interested in astronomy was Ancient Greece. A very famous ancient astronomer from Greece was called Claudius Ptolemy who invented the Ptolemaic system. This astronomer was a Greco-Egyptian writer, mathematician, astronomer, geographer, astrologer and poet of a single epigram in the Greek Anthology. Ptolemy had a lot of jobs because at the time (90 AD – 168 AD), there wasn’t that much knowledge about science so people interested in science had to have a lot of other jobs. But nowadays, there is more knowledge about science therefore you can just focus on science if you want to.

Claudius was also a Greek citizen of the Roman emperor, and was born in ancient Egypt in Alexandria (when it was under a Roman emperor). This Ptolemaic system showed how earth was in the middle/centre of the universe, and this fact has influenced humans for hundreds of years. This system was a drawing that shows earth was in the centre of the universe, but Ptolemy was known largely for it. But knowledge today is showing that heaps of Ptolemy’s knowledge actually came from another person,

Euclid (father of Geometry) who is an ancient Greek mathematician and a lot of people would say the greatest astronomer of all time. He categorised hundreds of stars, as well as discovering the Precession of the Equinoxesa (the wobbling of the earth around its axis). This Precession explains why in 12 000 years, the northern star won’t be Polaris anymore, it will be Vega.

An understanding I now have is some of our science knowledge was found out years ago, and a lot of our knowledge id from people in the past. Also that the knowledge we got from the past has really influenced us on our opinion of space.

2 questions I have now are:

Who created the Mayan calendar or the Babylonians calendar?

How did they find out all of this information when they didn’t have the technology we have today?